드론을 이용한 안심 귀가 서비스

전예지(Ye-Ji Jeon),김의연(Eui-yeon Kim),김이선(Yi-seon Kim),박다란(Da-ran Park) 한국정보기술학회 2017 Proceedings of KIIT Conference Vol.2017 No.6

컬러 영상을 활용한 중적외선 영상의 시인성 개선

전예지(Yeji Jeon),김가은(Gaeun Kim),한유경(Youkyung Han),김한울(Hanul Kim) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6

Mid-infrared (MIR) satellite images are widely used for observing the Earth’s surface and atmosphere in various fields. However, the low visibility of MIR image disturbs accurate analysis in its diverse applications. In this paper, we propose a novel framework to improve the visibility of MIR image, while preserve the important information in MIR image. We formulate our problem as a guided super-resolution (SR) which conveys rich details of high resolution RGB images to MIR images. Experiments on MIR satellites images shows that our method outperforms existing SR methods in terms of visibility.

금형의 경화를 위한 하이브리드 레이저 열처리 기술

전예랑(Y. R. Jeon),최해운(H. W. Choi),김종현 한국기계가공학회 2022 한국기계가공학회 춘추계학술대회 논문집 Vol.2022 No.12

CRISPR-Cas9 System을 적용한 Petunia x hybrida의 화기 구조 생성 관련 유전자 교정

전예인(Yein Jeon),이지영(Jiyoung Lee),지은이(Eunyee Jie),안명숙(Myungsuk Ahn),이긍주(Geungjoo Lee),김석원(Sukweon Kim) 한국원예학회 2017 한국원예학회 학술발표요지 Vol.2017 No.10

Nonparametric Bayesian modeling for baseline hazard functions

전예나,김세중,조장희,김용구 한국데이터정보과학회 2022 한국데이터정보과학회지 Vol.33 No.4

Survival analysis is primarily used to identify the time-to-event for events of interest. The Cox proportional hazards model takes advantage that it accounts for the proportionate risks of covariates without estimating exact baseline hazards. However, estimation of exact hazard distribution is always accompanied by estimating baseline hazard function as well as regression parameters. In this study, we adopted nonparametric Bayesian hierarchical model with flexible priors in estimating cumulative baseline hazard function. We assume a monotone step function for the cumulative baseline hazard function, where the number, size, and location of jumps are random. By Estimating the step function through stick-breaking construction, we can obtain a totally data-driven step function.

노년기 상용치료원 보유의 효과 분석: 의료비와 주관적 건강상태에 대한 효과를 중심으로

전예지 ( Yeji Jeon ),사공진 ( Jin Sakong ) 한국보건행정학회 2021 보건행정학회지 Vol.31 No.4

Background: Population aging is a serious problem in Korea. And we have experienced a rapid increase in the health expenditures of the elderly. The purpose of this paper is to analyze the effect of having a usual source of care (USC) for the elderly. Methods: This study used the Korea Health Panel Survey data of 2012, 2013, 2016, 2017, and 2018. The sample was the person who answered the USC questions among the elderly. The panel logit model was used to analyze the determinants of having USC and the panel simultaneous equation model was used to analyze the effect of having USC among the elderly on the medical expenses, medical utilization, and subjective health status. Results: The estimation result shows that age, income, marriage, and so forth turn out to be the factors of having USC. Having the clinic level USC is estimated to reduce the health care utilization and the health expenditure and to improve the subjective health status. Conclusion: It is expected that the result of our analysis will provide evidence for encouraging having USC.

Prediction of Laser Process Parameters using Bead Image Data

전예랑,최해운,Jeon, Ye-Rang,Choi, Hae-Woon The Korean Society of Manufacturing Process Engine 2022 한국기계가공학회지 Vol.21 No.6

In this study reports experiments were conducted to determine the quality of weld beads of different materials, Al and Cu. Among the lasers used to make battery cells for electric vehicles, non-destructive testing was performed using deep learning to determine the quality of beads welded with the ARM laser. Deep learning was performed using AlexNet algorithm with a convolutional neural network structure. The results of quality identification were divided into good and bad, and the result value was derived that all the results were in agreement with 94% or more. Overall, the best welding quality was obtained in the experiment for the fixed ring beam output/variable center beam output, in the case of the fixed beam (ring beam) 500W and variable beam (center beam) 1,050W; weld bead failure was seldom observed. The tensile force test to confirm the reliability of welding reported an average tensile force of 2.5kgf/mm or more in all sections.

Influences of Aerobic and Resistance Exercise on Health-related Problems in Cancer Patients: A review of the literature

전예나,전정우,홍지헌,유재호,김진섭,김성길,이동엽 대한통합의학회 2023 대한통합의학회지 Vol.11 No.3

Purpose : Until recently, the number of cancer patients continues to increase, and these patients have many limitations in their activities of daily living. In the republic of Korea, cancer patients are showing an increasing trend every year. Cancer disease not only significantly reduces the quality of life in individuals, but also causes various side effects if not managed. The purpose of this study was to investigate the effects of aerobic exercise and resistance exercise on health-related problems in cancer patients. Methods : This study searched for studies that applied aerobic exercise and resistance exercise to cancer patients reported in search engines (google scala, dbpia, and pubmed) from 2017 to 2022. Six randomized controlled trials and two systematic reviews and meta-analyses were used for analysis in our study. “physical activity”, “exercise”, “aerobic exercise”, “resistance exercise”, and “cancer patient” were the main search terms. The data included aerobic exercise, resistance exercise, cancer patients’ muscle strength, physical strength, quality of life, and physical activity. Results : According to the eight studies that met the criteria included in this review study, it was found that aerobic exercise and resistance exercise had an effect on the increase in physical fitness, muscular strength, quality of life, and range of motion in cancer survivors. Conclusion : It was confirmed that aerobic exercise and resistance exercise are safe and effective interventions that can be applied to cancer patients without side effects. A limitation of this study is that it did not examine cancer diseases in various population groups such as the elderly and children. Therefore, in future studies, studies that consider specific details such as age, gender, type of cancer, and physical differences are needed.

대학생과 미취업 대졸자 청년이 지각한 부모의 진로기대, 부모로부터의 심리적 독립과 진로결정 자기효능감

전예지 ( Ye Ji Chun ),이재림 ( Jae Rim Lee ) 한국가족관계학회 2014 한국가족관계학회지 Vol.19 No.3

In this study, we examined whether there were significant differences in parents’ career expectations (four dimensions), psychological separation from parents (four dimensions), and career decision-making self-efficacy between college students and college graduates. We also investigated whether parents’ career expectations and psychological separation from the parents were associated with career decision-making self-efficacy among college students and unemployed college graduates. Data came from 651 Korean young adults (332 college students and 319 college graduates) ages 20-29 who were not employed full-time, were never married, and lived in the Seoul metropolitan area. We separately analyzed fathers’ and mothers’ career expectations as well as psychological separation from the father and from the mother.Our t-tests showed that unemployed college graduates perceived significantly higher general career expectations from both parents compared to college students. Multiple regression analyses using father-related variables revealed that three dimensions of career expectations (general, aptitude, and family business) as well as emotional independence from the father were associated with college students’ career decision-making self-efficacy. For unemployed college graduates, two dimensions of career expectations (general and aptitude) were related to career decision-making self-efficacy. Using mother-related variables, we found that four dimensions of career expectations (general, aptitude, family business, and economic) as well as emotional independence from the mother were associated with college students’ career decision-making self-efficacy. For unemployed college graduates, two dimensions of career expectations (general and aptitude) as well as conflictual independence from the mother were related to career decision-making self-efficacy. The results of this study contribute to the literature by understanding similarities and differences between college students and unemployed college graduates.

일자리의 질이 고령 근로자의 생활만족도에 미치는 영향

전예지,홍경준 한국사회복지정책학회 2020 사회복지정책 Vol.47 No.2

In South Korea, the number of senior citizens who are employed is on the increase. However, the largest percentage of the jobs held by the elderly can be described as “low-quality”. This description is based on the following factors: The jobs pay low wages, they are low-skilled jobs and they offer low levels of job security. The purpose of this study is to examine the effects of job quality on the life satisfaction of elderly employees. To this end, the quality of jobs was measured by utilizing the concept of informal employment. This study analyzes the data of people aged 55 to 75 collected in the seventh-wave of the Korean Longitudinal Study of Aging. The results of this study are as follows: First, the elderly in formal employment displayed higher levels of life satisfaction than their peers who were unemployed. Second, senior citizens in informal employment displayed lower levels of life satisfaction than those who were unemployed. This finding indicates that working in a low-quality jobs has a greater adverse effect on life satisfaction than being unemployed. Third, the elderly in formal employment showed higher levels of life satisfaction than those who were in informal employment. The findings of this study therefore indicate that improving the life satisfaction of elderly employees requires the provision of quality jobs, in the form of formal employment. In addition, a quantitative expansion of quality jobs available to the elderly is necessary. 노년기에 취업을 선택하는 고령자가 증가하고 있지만, 고령자는 대부분 저임금, 저숙련직, 낮은고용 안정성으로 요약되는 ‘질이 낮은 일자리’에 종사한다는 특성을 지닌다. 본 연구에서는 일자리의 질이 고령 근로자의 생활만족도에 미치는 영향을 살펴보는 것을 목적으로 한다. 구체적으로질이 낮은 일자리에 종사하는 고령 근로자의 생활만족도가 미취업자와 어떠한 차이를 보이는지를고찰하고자 한다. 이를 위하여 본 연구에서는 비공식 고용의 개념을 활용하여 일자리의 질을 측정하였으며, 한국고용정보원의 고령화연구패널조사 제7차 자료를 분석하였다. 연구가설을 검증하기 위하여 다중회귀분석(multiple regression analysis)을 실시하였다. 분석결과, 공식 고용 상태의고령자는 미취업 상태의 고령자보다 생활만족도가 높은 것으로 나타났다. 이러한 분석결과는 양질의 일자리에 종사하는 고령 근로자는 일을 하지 않는 고령자보다 생활만족도가 높다는 것을 보여준다. 반면, 비공식 고용 상태인 고령자는 미취업 상태인 고령자보다 생활만족도가 낮은 것을확인하였다. 이는 질이 낮은 일자리에 종사하는 것은 일을 안 하는 것보다 생활만족도를 감소시킨다는 것을 의미한다. 마지막으로 공식 고용 상태의 고령자는 비공식 고용보다 생활만족도가 높았다. 이와 같은 연구결과는 고령 근로자의 생활만족도를 향상시키기 위하여 일자리의 양적인 확대와 더불어 공식 고용과 같은 양질의 일자리의 제공이 필요하다는 것을 시사한다.